Greenings is powered by a small, dedicated team and guided by a global network of experts and leaders.
Meet the people behind the mission.
Dennis West
Dennis co-founded Greenings in 2009 and now serves as Chair of the Board and Research Director of the Valuing Impact Programme. His work spans policy, law, entrepreneurship, and systems innovation, with a strong focus on the role of governance in sustainability transitions.
His PhD at the University of Oxford explores the systems dynamics of standardisation and its influence on transition planning. Dennis is affiliated with the Saïd Business School’s Skoll Centre for Social Entrepreneurship and the Centre for Socio-Legal Studies. He regularly works across academia and industry and is frequently invited to speak and moderate on topics related to sustainable governance and finance.
Dennis holds an MSc in Accounting and Organisations from the LSE, an MPhil in Socio-Legal Research from Oxford, and a BA/MA in law, economics, and business from the EUCOR European Campus (Basel, Strasbourg, and Freiburg).
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Kristin Kostka
Kristin chairs Greenings’ Development Committee and leads its One Health Outcomes work. She is a clinical epidemiologist and health data scientist with more than 15 years of experience across industry, academia, and government. Her work focuses on the intersection of health, climate, nature, and decision-making. She has built and led large-scale research programmes and international evidence networks spanning more than 100 institutions.
At Greenings, Kristin develops research linking environmental pressures and resource security with health outcomes, with a focus on making these relationships useful for investment, policy, and enterprise decisions. She brings particular expertise in scaling research from concept to implementation, including multidisciplinary teams, shared methods, governance, and data infrastructure. Kristin holds a DPhil in Clinical Epidemiology and Medical Statistics from the University of Oxford and an MPH in Epidemiology from Boston University.
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Theo Breakspear
Theo is Greenings’ Operations Manager. He drives operational excellence and ensures Greenings maximises value for its growing network of members and partners.
He brings experience in product management, project management, and software, and has previously worked at Aurora Energy Research, the University of Oxford’s Oxford Net Zero Programme, and fintech and data startups. He holds a BSc in Physics from the University of Warwick.
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Luzius Zumstein
Luzius is a Swiss attorney at the commercial law firm VISCHER AG, where he is co-head of the Startup Desk. He advises startups, growth companies, and their investors on corporate and commercial law from incorporation to exit.
He specialises in the life sciences, cleantech and deeptech sectors. Luzius holds a degree in Law and Economics from the University of St. Gallen and a postgraduate in business and finance from the London School of Business & Finance.
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Jimmy Jia
Jimmy Jia is a strategist, entrepreneur, and technologist working at the intersection of energy, environment, and finance. He advises the boards of publicly listed companies on their net zero strategies, serves as ESG Venture Partner at Pi Labs (a PropTech VC firm), and sits on several US-based boards, where he chairs finance and strategy committees and supports CEO recruitment.
He is a Research Associate at Oxford Net Zero and a member of the Oxford Smith School of Enterprise and the Environment. His research focuses on carbon accounting practices and the development of a ‘general-purpose green ledger’—a system based on IFRS principles that synchronises emissions data over time to improve its decision-usefulness for financial stakeholders.
Jimmy is the author of two books on corporate energy strategy, has written for Harvard Business Review Online, and is a frequent speaker on the future of the energy grid. He holds BS and MS degrees from MIT, and an MBA and PhD from the University of Oxford.
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Become a member: accelerate sustainability with Greenings.
Join a dynamic network of individuals dedicated to driving real impact across sectors for a sustainable future. Membership is open to leaders who share our vision for positive change, commit to collaboration, and uphold our core values of empathy, awareness, and courage.
Annual membership is just CHF20—with an optional donation.